CUECULION 1 1 ).i: — sito>i>m:. <>7 



hnvin;^- Ik-l-u desiTilx-d tV..iii Ai.\ (tw.. s]»cfics), (h'nin<,feii, luid l.*..it. 'I'liree 

 species are despriV)c.| liclow, oiir fVom Florissiint, ( "ul«»rii<l(i, iinotlu-r frciu 

 (irccii KixtT, W\(iiiiiiij;-, and tin' third fVi)iii l»itli tlic l>(-;ni iiiuiiiiliiins, 

 ( ',i1(.i:i.1m, ;iii<l Green l\iver. Wyoming', l)ut this hist species is referred here 

 witii iiiiich liesitation, and it may well belon-,'- to the Oliorhynchidie rather 

 than the C'urculionida'. Our other species bear no dose reseml)lance to 

 anv ot' those from the Eiii-oiican Tertiaries. 



Table of the speeivH of Sitona. 



Rostrum shorter than the head. 



IJody less than twice as loiij; as lii-li cjritioriim. 



Hody much more than twice as long as high fodiimriiiii. 



Kostrum half as long again as the head 2>" (I >>""'""> ■ 



SlTONA EXITIORUM. 



ri. IV, F\<r. 13. 



jiodv \V(dl arched, tlic dorsal cm-vc ])retty nniforni, soiiicwhat <d<.ii,i:-atc, 

 well rounded l)ehind. Head full, nearly twice as high as long, tindy and 

 transversely rugoso-piinctate ; eyes small, circular, situated well torward, 

 tlicii- lower edge at the middle line of the side; rostrum >cry stout, .shorter 

 than the head, ajncally lm)ad (slightly di>torte<l in the si)ecimen figured, so 

 as to Inok pointed). Prothorax nearly half as high again as long, tapering 

 and o-entlv arched above, the surface densely and not coarsely punctate. 

 Elytra with feebly impressed punctate stria>. Legs rather slender and long, 

 es])eciallv the tibiiv, which arc; apically truncate. 



Length, excluding rostrum, 4(J"""; rostrum, U-7"""; elytra, 31 '"■"; height 

 of body, 2-G""". 



Florissant, Colorado. Four specimens, Nos. 466, 3540, 5333, 8204. 



SlTOIi-V FODINAEUM. 



PI. X, Fig. 5. 



Body well ardied but with the middle of the dorsal cun^e flattened. 

 Head moderately full, twice as high as Imig, nearly snnM.th : eyes rather 

 large, circular, situated well forward, central in height: rostrum very stout, 



